Arge zarudnyi Gussakovskij, 1935

31. Arge zarudnyi Gussakovskij, 1935

( Figs 44 View FIGURE 44 , 45 View FIGURE 45 )

Arge zarudnyi Gussakovskij, 1935: 233 (key), 259 (description), 402 (key), 417–418 (description), Fig. 71B, ♂, ♀.

Arge scita (Mocsáry, 1880) : Benson, 1968: 126 (as synonym of A. zarudnyi ); Taeger et al. 2010: 138.

Current status. Arge bucharica Gussakovskij, 1935 , syn. nov.

Type locality. Iran, Kerman, Duzab.

Lectotype (designated here): ♀, <golden circle> // Керман: стр[ана]. Саргад. ДуЗаб [ Iran, Kerman, Duzab], 14– 18.05.1928, Н. Зарудный [leg. N. Zarudnyi] // Coll [ection]. Semenov-Tian-Shansky // Arge zarudnyi , sp. nov., ♀, Gussakovskij det. // DEI-GISHym 89413 // SYNTYPUS Arge zarudnyi Guss., 1935 , ♀, teste A. Taeger 2018 // Zoological Institute St. Petersburg INS_HYM_0001944 [ ZISP] .

Paralectotypes: ♂, same labels as lectotype, but DEI-GISHym 89414 // Zoological Institute St. Petersburg INS_HYM_0001945 [ ZISP] ; ♀, same labels as lectotype, but 19.05.1928 // DEI-GISHym 89415 // Zoological Institute St. Petersburg INS_HYM_0001946 [ ZISP] .

Description. Female ( Fig. 44 View FIGURE 44 ). Body length 8.2 mm; fore wing length 7.6 mm.

Colour. Head and thorax black with bronze-green metallic lustre, abdomen yellow, tergites 1–2, 5–6 almost completely (except for narrow stripe along hind margin) and basal half of tergite 7 black with slight blue lustre. Antennae dark brown. Legs up to knees black, with slight bronze-green lustre, apex of femora, tibiae and tarsi dirty-white, hind tibiae at apex brown not reaching preapical spurs. Hind tarsus on dorsal side darkened. Wings completely hyaline, with indistinct spot under pterostigma, veins brown, base of veins C and A whitish; pterostigma brown, slightly lighter at base and at margin. Labrum brown, mandibles brown at base, red-orange towards apex, mouthparts orange. Body with sparse silvery-yellowish pubescence.

Head. Head behind eyes slightly widened. Distance between eyes 1.4 × vertical diameter of eye. Vertical diameter of eye 1.7 × horizontal diameter. POL: OCL: OOL as 1.2: 1.1: 1.0. Median fovea small, developed only in upper part, not deep, open above to frontal area. Lateral carinae of median fovea thick, blunt, not joined dorsally, early smoothed ventrally, weakly convergent, not joined and not forming median carina. Supraclypeal area convex, smooth with sparse dots. Malar space about equal to diameter of frontal ocellus. Clypeus flat, slightly semi-circularly incised at middle of ventral margin for third of its width. Labrum flat, rounded at apex.

Antennae. Antennae 1.2 × maximum width of head. Flagellum slightly curved at base, bluntly rounded at apex, covered with short, densely adherent, dense setae.

Thorax. Mesopleurae smooth, glabrous below. Scutellum flat, narrowly rounded at apex.

Legs. Legs with preapical spurs on middle and hind tibiae, tibial spurs simple. Hind basotarsomer slightly longer than three following together.

Wings. Cell 3Rs with posterior margin longer than anterior margin, to external margin slightly widened. Vein 3r-m slightly roundly curved. Vein B of fore wing joins vein R before junction point of vein M. Cell 1Rs with very sparse and short setae. Wing margin between M and Cu not ciliate, glabrous.

Abdomen. Abdomen oval (in dorsal view), convex on sides, 1.8 × as long as width. Saw sheath thick, ventrally parallel, bluntly rounded at end, laterally blunt, rounded, almost straight along ventral margin; dorsally notched along inner edge, with short thick and blunt spines along rest.

Lance in lateral view strongly convex, narrowed at base, uniformly covered with annuli almost to base. Maximum width of lance greater than lancet width. Carina of apical part of dorsal margin with finely, irregular and indistinct denticles, remaining part of dorsal margin with longitudinal shallow fossa. Lancet with straight dorsal and convex ventral margin. Annuli nearly straight and dorsally inclined towards apex, in apical part indistinct. Annular spines (ctenidia) short, simple, several times shorter than width of annulus. Ventral margin with 20 well-distinct, strongly sclerotised serrulae. Serrulae small, smooth, gaps between them 2.0 × or more than their width, rounded or papillate, triangular in apical part with rounded apex. Between serrulae one short and straight pore canals of marginal sensilla.

Male ( Fig. 45 View FIGURE 45 ). Body length 7.3 mm; fore wing length 6.8 mm.

In colouration as female but on abdomen black only tergites 1, 6, 7 and medially base of tergite 2. Metallic lustre on body blue-green. Hind tarsus completely blackened. Head behind eyes constricted. Distance between eyes about equal to vertical diameter of eye. Vertical diameter of eye 1.7 × as long as its horizontal diameter. POL: OCL: OOL as 1.6: 1.0: 1.2. Median fovea triangular. Lateral keels sharp, almost straight, strongly converging at lower part, joining together and forming indistinct median carina. Antennae 1.8 × maximum width of head. Flagellum slightly curved, narrowly rounded at apex, on anterior surface with long erect setae. Vein B of fore wing joins vein R well before (longer than vein Sc) junction point of vein M. Subgenital plate in ventral view triangularly narrowed to apex, slightly notched in middle of posterior margin.

Genitalia as in Fig. 45j View FIGURE 45 , gonostipes broad, convex on inner margin, tapering towards apex. Harpe parallel at base, rounded at apex, elongated, length 1.5 × width at base, densely covered with tiny setae. Valve of penis with valviceps sickle-shaped, curved at apex dorsally, flat, bluntly rounded at apex. Valviceps in dorsal view narrow, linear, slightly broadened at base and at apex; in lateral view very narrow and curved, with large dorsal notch in middle, apex widened and bluntly rounded, with many large pores. Dorsal process (ergot) clearly visible, slightly curved.

Remark. Benson (1968) synonymised Arge zarudnyi and A. scita without specifying reasons or arguments. However, the essential differences in the structure of the genitalia in these species gives us reason not to consider A. zarudnyi as a synonym of A. scita .

The original description is based on two female and one male syntypes originating from “ Kerman, Duzab ” ( Iran) (translated from Gussakovskij 1935: 418). Two females and one male were found in ZISP. The female is here designated as the lectotype .

The specimens with extensive black colouration on the abdomen are known in large series of A. buharica . These specimens fully correspond to the description of A. zarudnyi , but such intense black colouration is never observed in A. scita . Thus, A. zarudnyi is a junior subjective synonym of A. buharica ( syn. nov.).